Question

In: Biology

The Bean (Phaseolus vulgaris) Flower and Fruit: What has become of the various parts of the...

The Bean (Phaseolus vulgaris) Flower and Fruit:

What has become of the various parts of the flowers during development of the fruit?

How many locules are there in the ovary you are examining?

What has become of the various floral parts during development of the fruit?

Solutions

Expert Solution

Ans:

Fruit is a fertilized mature part of ovary. The fruit of Phaseolus vulgaris is dry dehiscent legume type. During the development of fruit, the different part of flower become change in the following ways

Calyx = persistently present with the stalk of fruit.

Corolla = disappear

Stamen = not present during fruit development, produce pollen from which the male gametes produce seed with egg.

Carpel:

Style and stigma = not present

Ovary wall = dry pericarp

Ovule = edible seed

Nucellus = Perisperm

Outer intigument = testa

Inner intigument = tegment

Micropyle = micropyle

Funicle = staked of seed

Hilum = hilum

The number of locule or chamber in the ovary of Phaseolus vulgaris is one. Phaseolus vulgaris is a plant of the family leguminoceae with marginal placentation and the ovary has one chambered or locule with one ovule in each locule.

locule @ ovary & ovule Marginal placentation of Phaseolus vulgaris


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